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Huang H, Xia J, Liu Y, Wang J, Chen X, Wang W, Lan Q, Zhang X, Lv Y, Liu T. Mineralized Nanofiber Substrates Enabling High-Performance Dually Charged Nanofiltration Membranes with Enhanced Permeability. ACS APPLIED MATERIALS & INTERFACES 2024; 16:68273-68284. [PMID: 39610255 DOI: 10.1021/acsami.4c13829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2024]
Abstract
Nanofiltration membranes (NFMs) with superior permeability and high rejection of both divalent anions and cations are highly desirable to meet the increasing separation demands of complex systems. Herein, we propose a three-in-one strategy to develop a state-of-the-art dually charged thin-film composite (TFC) nanofiltration membrane consisting of a positively charged electrospun nanofiber substrate (NFS) with surface mineralization and a negatively charged polyamide (PA) selective layer prepared by interfacial polymerization (IP). The highly hydrophilic mineralized nanofiber substrate not only effectively reduces the thickness of the PA selective layer but also crumples its structures by the abundant zirconia nanoparticles on the substrate surface, resulting in excellent water flux (15.0 L m-2 h-1 bar-1) for the TFC NFMs. The relationship between the thickness of the selective layer and substrate is further investigated using dissipative particle dynamics (DPD) simulations. Meanwhile, the dually charged NFM exhibits relatively high rejection for both anions (97.1% for Na2SO4 and 97.9% for MgSO4) and cations (87.9% for MgCl2) in aqueous solutions compared with single-charged membranes, which is attributed to the dual-repulsion effect of the selective layer and the substrate surface bearing opposite charges. Moreover, the prepared NFMs exhibit good stability and excellent antifouling performance. This work may pave the way for the development of highly efficient nanofiltration membranes for the practical separation of comprehensively charged solutes.
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Affiliation(s)
- HaiYan Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - JingJing Xia
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Ying Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - JiaoJiao Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - XueMin Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - WenXu Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Qianqian Lan
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Xu Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Yan Lv
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
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Meng W, Chen S, Chen P, Gao F, Lu J, Hou Y, He Q, Zhan X, Zhang Q. Space-Confined Synthesis of Thinner Ether-Functionalized Nanofiltration Membranes with Coffee Ring Structure for Li +/Mg 2+ Separation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2404150. [PMID: 39269274 PMCID: PMC11538659 DOI: 10.1002/advs.202404150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/07/2024] [Indexed: 09/15/2024]
Abstract
Positively charged nanofiltration membranes have attracted much attention in the field of lithium extraction from salt lakes due to their excellent ability to separate mono- and multi-valent cations. However, the thicker selective layer and the lower affinity for Li+ result in lower separation efficiency of the membranes. Here, PEI-P membranes with highly efficient Li+/Mg2+ separation performance are prepared by introducing highly lithophilic 4,7,10-Trioxygen-1,13-tridecanediamine (DCA) on the surface of PEI-TMC membranes using a post-modification method. Characterization and experimental results show that the utilization of the DCA-TMC crosslinked structure as a space-confined layer to inhibit the diffusion of the monomer not only increases the positive charge density of the membrane but also reduces its thickness by ≈35% and presents a unique coffee-ring structure, which ensures excellent water permeability and rejection of Mg2+. The ion-dipole interaction of the ether chains with Li+ facilitates Li+ transport and improves the Li+/Mg2+ selectivity (SLi,Mg = 23.3). In a three-stage nanofiltration process for treating simulated salt lake water, the PEI-P membrane can reduce the Mg2+/Li+ ratio of the salt lake by 400-fold and produce Li2CO3 with a purity of more than 99.5%, demonstrating its potential application in lithium extraction from salt lakes.
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Affiliation(s)
- Wentong Meng
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
| | - Sifan Chen
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
| | - Pu Chen
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
| | - Feng Gao
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
| | - Jianguo Lu
- School of Materials Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Yang Hou
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
| | - Qinggang He
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
| | - Xiaoli Zhan
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
| | - Qinghua Zhang
- College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China
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Wang W, Wang C, Huang R, Hong G, Zhang Y, Zhang X, Shao L. Boosting lithium/magnesium separation performance of selective electrodialysis membranes regulated by enamine reaction. WATER RESEARCH 2024; 268:122729. [PMID: 39531798 DOI: 10.1016/j.watres.2024.122729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2024] [Revised: 10/08/2024] [Accepted: 10/30/2024] [Indexed: 11/16/2024]
Abstract
Monovalent cation exchange membranes (MCEMs) have progressively played an important role in the field of ion separation. However, according to transition state theory (TST), synchronously tuning the enthalpy barrier (△H) and entropy barrier (△S) for cation transport to improve ion separation performance is challenging. Here, the enamine reaction between the -NH- and -CHO groups is applied to regulate the subsequent Schiff-base reaction between the -CHO and -NH2 groups, which reduces the positive charges of the selective layer but increases the steric hindrance. The increased -T△S (△S term) for cation transport plays an important role in improving Li+/Mg2+ separation performance. The optimal positively-charged glutaraldehyde@piperazine/polyethyleneimine assembled membrane (M-Glu@PIP/PEI) has a perm-selectivity (Li+/Mg2+) of 31.83 with a Li+ flux of 1.87 mol·m-2·h-1, surpassing the Li+/Mg2+ separation performance of state-of-the-art monovalent ion selective membranes (MISMs). Most importantly, the selective electrodialysis (S-ED) process with M-Glu@PIP/PEI can be directly applied to treat simulated salt-lake brines (SLBs), and its superior Li+/Mg2+ separation performance and operational stability enables 74.44 % of the lithium resources with a Li+ purity of 34.02 % to be recovered. This study presents new insights into the design of high-performance MCEMs for energy-efficient resource recovery.
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Affiliation(s)
- Wenguang Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Chao Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Renyao Huang
- Beijing OriginWater Membrane Technology Co., Ltd, Beijing 101400, China
| | - Guanghui Hong
- Center for Analysis, Measurement and Computing, Harbin Institute of Technology, Harbin 150001, China
| | - Yanqiu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Xigui Zhang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China.
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
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Liu ML, Chen Y, Hu C, Zhang CX, Fu ZJ, Xu Z, Lee YM, Sun SP. Microporous membrane with ionized sub-nanochannels enabling highly selective monovalent and divalent anion separation. Nat Commun 2024; 15:7271. [PMID: 39179599 PMCID: PMC11344077 DOI: 10.1038/s41467-024-51540-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 08/09/2024] [Indexed: 08/26/2024] Open
Abstract
Membranes tailored for selective ion transport represent a promising avenue toward enhancing sustainability across various fields including water treatment, resource recovery, and energy conversion and storage. While nanochannels formed by polymers of intrinsic microporosity (PIM) offer a compelling solution with their uniform and durable nanometer-sized pores, their effectiveness is hindered by limited interactions between ions and nanochannel. Herein, we introduce the randomly twisted V-shaped structure of Tröger's Base unit and quaternary ammonium groups to construct ionized sub-nanochannel with a window size of 5.89-6.54 Å between anion hydration and Stokes diameter, which enhanced the dehydrated monovalent ion transport. Combining the size sieving and electrostatic interaction effects, sub-nanochannel membranes achieved exceptional ion selectivity of 106 for Cl-/CO32- and 82 for Cl-/SO42-, significantly surpassing the state-of-the-art membranes. This work provides an efficient template for creating functionalized sub-nanometer channels in PIM membranes, and paves the way for the development of precise ion separation applications.
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Affiliation(s)
- Mei-Ling Liu
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
- NJTECH University Suzhou Future Membrane Technology Innovation Center, Suzhou, 215100, China
| | - Yu Chen
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Chuan Hu
- Department of Energy Engineering, College of Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Chun-Xu Zhang
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zheng-Jun Fu
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhijun Xu
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Young Moo Lee
- Department of Energy Engineering, College of Engineering, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Shi-Peng Sun
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China.
- NJTECH University Suzhou Future Membrane Technology Innovation Center, Suzhou, 215100, China.
- Suzhou Laboratory, Suzhou, 215100, China.
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Yang PX, Wang J, Liu HL, Guo ZY, Huang ZH, Zhang PP, Ji ZY. High-Performance Monovalent Selective Cation Exchange Membranes with Ionically Cross-Linkable Side Chains: Effect of the Acidic Groups. ACS APPLIED MATERIALS & INTERFACES 2024; 16:35576-35587. [PMID: 38940328 DOI: 10.1021/acsami.4c07085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Inspired by the charge-governed protein channels located in the cell membrane, a series of polyether ether ketone-based polymers with side chains containing ionically cross-linkable quaternary ammonium groups and acidic groups have been designed and synthesized to prepare monovalent cation-selective membranes (MCEMs). Three acidic groups (sulfonic acid, carboxylic acid, and phenolic hydroxyl) with different acid dissociation constant (pKa) were selected to form the ionic cross-linking structure with quaternary ammonium groups in the membranes. The ionic cross-linking induced the nanophase separation and constructed ionic channels, which resulted in excellent mechanical performance and high cation fluxes. Interesting, the cation flux of membranes increased as the ionization of acidic groups increase, but the selectivity of MCEMs did not follow the same trend, which was mainly dependent on the affinity between the functional groups and the cations. Carboxyl group-containing MCEMs exhibited the best selectivity (9.01 for Li+/Mg2+), which was higher than that of the commercial monovalent cation-selective CIMS membrane. Therefore, it is possible to prepare stable MCEMs through a simple process using ionically cross-linkable polymers, and tuning acidic groups in the membranes provided an attractive approach to improving the cation flux and selectivity of MCEMs.
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Affiliation(s)
- Peng-Xu Yang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Jing Wang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Hui-Li Liu
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Zhi-Yuan Guo
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Zhi-Hui Huang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Pan-Pan Zhang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Zhi-Yong Ji
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
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Zhang Y, Zhou K, Su S, Gao J, Liu J, Jiang L. Congener-welded crystalline carbon nitride membrane for robust and highly selective Li/Mg separation. SCIENCE ADVANCES 2024; 10:eadm9620. [PMID: 38875338 PMCID: PMC11177944 DOI: 10.1126/sciadv.adm9620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 05/10/2024] [Indexed: 06/16/2024]
Abstract
Extracting lithium from salt-lake brines critically relies on the separation of Li+ and Mg2+, which could combat the lithium shortage. However, designing robust sieving membrane with high Li+/Mg2+ selectivity in the long-time operation has remained highly challenging. Here, we demonstrate a bioinspired congener-welded crystalline carbon nitride membrane that can accomplish efficient and stable monovalent ion sieving over divalent Mg ion. The crystalline carbon nitrides have uniform and narrow pore size to reject the large hydrated Mg2+ and rich ligating sites to facilitate an almost barrierless Li+ transport as suggested by ab initio simulations. These crystals were then welded by vapor-deposited congeners, i.e., amorphous polymer carbon nitride, which have similar composition and chemistry with the crystals, forming intimate and compatible crystal/polymer interface. As a result, our membrane can sieve out highly dilute Li+ (0.002 M) from concentrated Mg2+ (1.0 M) with a high selectivity of 1708, and can be continuously operated for 10 days.
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Affiliation(s)
- Yuanyuan Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ke Zhou
- College of Energy, Soochow Institute for Energy and Materials InnovationS (SIEMIS), Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Shigang Su
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jun Gao
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| | - Jian Liu
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lei Jiang
- CAS Key Laboratory of Bio-Inspired Materials and Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100090, China
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Xu T, Wu B, Li W, Li Y, Zhu Y, Sheng F, Li Q, Ge L, Li X, Wang H, Xu T. Perfect confinement of crown ethers in MOF membrane for complete dehydration and fast transport of monovalent ions. SCIENCE ADVANCES 2024; 10:eadn0944. [PMID: 38718127 PMCID: PMC11078184 DOI: 10.1126/sciadv.adn0944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/04/2024] [Indexed: 05/12/2024]
Abstract
Fast transport of monovalent ions is imperative in selective monovalent ion separation based on membranes. Here, we report the in situ growth of crown ether@UiO-66 membranes at a mild condition, where dibenzo-18-crown-6 (DB18C6) or dibenzo-15-crown-5 is perfectly confined in the UiO-66 cavity. Crown ether@UiO-66 membranes exhibit enhanced monovalent ion transport rates and mono-/divalent ion selectivity, due to the combination of size sieving and interaction screening effects toward the complete monovalent ion dehydration. Specifically, the DB18C6@UiO-66 membrane shows a permeation rate (e.g., K+) of 1.2 mol per square meter per hour and a mono-/divalent ion selectivity (e.g., K+/Mg2+) of 57. Theoretical calculations and simulations illustrate that, presumably, ions are completely dehydrated while transporting through the DB18C6@UiO-66 cavity with a lower energy barrier than that of the UiO-66 cavity. This work provides a strategy to develop efficient ion separation membranes via integrating size sieving and interaction screening and to illuminate the effect of ion dehydration on fast ion transport.
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Affiliation(s)
- Tingting Xu
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Bin Wu
- School of Chemistry and Chemical Engineering, Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230601, China
| | - Wenmin Li
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Yifan Li
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Yanran Zhu
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Fangmeng Sheng
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Qiuhua Li
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Liang Ge
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Xingya Li
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
| | - Huanting Wang
- Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Tongwen Xu
- Key Laboratory of Precision and Intelligent Chemistry, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
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8
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Zhao S, Zhao Z, Zhang X, Zha Z, Tong T, Wang R, Wang Z. Polyamide Membranes with Tunable Surface Charge Induced by Dipole-Dipole Interaction for Selective Ion Separation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5174-5185. [PMID: 38451543 DOI: 10.1021/acs.est.3c10195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Nanofiltration (NF) has the potential to achieve precise ion-ion separation at the subnanometer scale, which is necessary for resource recovery and a circular water economy. Fabricating NF membranes for selective ion separation is highly desirable but represents a substantial technical challenge. Dipole-dipole interaction is a mechanism of intermolecular attractions between polar molecules with a dipole moment due to uneven charge distribution, but such an interaction has not been leveraged to tune membrane structure and selectivity. Herein, we propose a novel strategy to achieve tunable surface charge of polyamide membrane by introducing polar solvent with a large dipole moment during interfacial polymerization, in which the dipole-dipole interaction with acyl chloride groups of trimesoyl chloride (TMC) can successfully intervene in the amidation reaction to alter the density of surface carboxyl groups in the polyamide selective layer. As a result, the prepared positively charged (PEI-TMC)-NH2 and negatively charged (PEI-TMC)-COOH composite membranes, which show similarly high water permeance, demonstrate highly selective separations of cations and anions in engineering applications, respectively. Our findings, for the first time, confirm that solvent-induced dipole-dipole interactions are able to alter the charge type and density of polyamide membranes and achieve tunable surface charge for selective and efficient ion separation.
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Affiliation(s)
- Song Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Zhenyi Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Xinzhu Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Zhiyuan Zha
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Tiezheng Tong
- Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Rong Wang
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore Membrane Technology Center, Nanyang Environment and Water Research Institute, Singapore 637141, Singapore
| | - Zhi Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
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9
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Chen JS, Wang J, Zhang JH, Guo ZY, Zhang PP, Guo XF, Liu J, Ji ZY. Electronanofiltration Membranes with a Bilayer Charged Structure Enable High Li +/Mg 2+ Selectivity. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6632-6643. [PMID: 38272023 DOI: 10.1021/acsami.3c16092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Achieving separation of lithium and magnesium with similar radii is crucial for the current lithium extraction technology from salt lakes, which usually possess a high lithium-to-magnesium ratio. Herein, we proposed the facile sequential interfacial polymerization (SIP) approach to construct electronanofiltration membranes (ENFMs) with a bilayer charged structure consisting of a high positively charged surface and a negatively charged sublayer. The trimesoyl chloride (TMC) concentration was adjusted to enhance the -COOH content and negative charge of the polyamide sublayer to promote Li+ migration, and then the quaternized polyethylenimine was introduced to the membrane surface by the SIP process to increase the positive charge density on the surface of the ENFMs, which would block the migration of Mg2+ and enhance the Li+/Mg2+ selectivity of the ENFMs. The optimal quaternary-modified ENFMs achieved outstanding selectivity for Li+/Mg2+ (49.85) and high Li+ flux (4.10 × 10-8 mol cm-2 s-1) at a current density of 10 mA cm-2. Moreover, in simulated brines with low lithium concentration and high Mg2+/Li+ ratio, the optimal ENFMs also displayed elevated Li+/Mg2+ selectivity (>45), highlighting the substantial promise of the membranes for practical applications.
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Affiliation(s)
- Jia-Shuai Chen
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Jing Wang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Ji-Hong Zhang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Zhi-Yuan Guo
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Pan-Pan Zhang
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Xiao-Fu Guo
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Jie Liu
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
| | - Zhi-Yong Ji
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300130, China
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10
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Wang R, Lin S. Membrane Design Principles for Ion-Selective Electrodialysis: An Analysis for Li/Mg Separation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 38324772 PMCID: PMC10882969 DOI: 10.1021/acs.est.3c08956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Selective electrodialysis (ED) is a promising membrane-based process to separate Li+ from Mg2+, which is the most critical step for Li extraction from brine lakes. This study theoretically compares the ED-based Li/Mg separation performance of different monovalent selective cation exchange membranes (CEMs) and nanofiltration (NF) membranes at the coupon scale using a unified mass transport model, i.e., a solution-friction model. We demonstrated that monovalent selective CEMs with a dense surface thin film like a polyamide film are more effective in enhancing the Li/Mg separation performance than those with a loose but highly charged thin film. Polyamide film-coated CEMs when used in ED have a performance similar to that of polyamide-based NF membranes when used in NF. NF membranes, when expected to replace monovalent selective CEMs in ED for Li/Mg separation, will require a thin support layer with low tortuosity and high porosity to reduce the internal concentration polarization. The coupon-scale performance analysis and comparison provide new insights into the design of composite membranes used for ED-based selective ion-ion separation.
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Affiliation(s)
- Ruoyu Wang
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
| | - Shihong Lin
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235-1831, United States
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11
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Yao Y, Mu J, Li Y, Ma Y, Xu J, Shi Y, Liao J, Shen Z, Shen J. Rechargeable Multifunctional Anti-Bacterial AEMs for Electrodialysis: Improving Anti-Biological Performance via Synergistic Antibacterial Mechanism. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303588. [PMID: 37697634 PMCID: PMC10602572 DOI: 10.1002/advs.202303588] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/20/2023] [Indexed: 09/13/2023]
Abstract
Constructing a functional layer on the surface of commercial membrane (as a substrate) to inhibit the formation of biofilms is an efficient strategy to prepare an antibacterial anion exchange membrane (AEM). Herein, a rechargeable multifunctional anti-biological system is reported by utilizing the mussel-inspired L-dopa connection function on commercial AEMs. Cobalt nanoparticles (Co NPs) and N-chloramine compounds are deposited on the AEM surface by a two-step modification procedure. The anti-biofouling abilities of the membranes are qualitatively and quantitatively analyzed by adopting common Gram-negative (E. coli) and Gram-positive (S. aureus & Bacillus) bacteria as model biofouling organisms. The optimized membrane exhibits a high stability concerning the NaCl solution separation performance within 240 min. Meantime, the mechanism of the anti-adhesion is un-veiled at an atomic level and molecular dynamics (MD) simulation are conducted to measure the interaction, adsorption energy and average loading by using lipopolysaccharide (LPS) of E. coli. In view of the superior performance of antibacterial surfaces, it is believed that this work could provide a valuable guideline for the design of membrane materials with resistance to biological contamination.
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Affiliation(s)
- Yuyang Yao
- College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China
| | - Junjie Mu
- College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China
| | - Yuan Li
- Information Materials and Intelligent Sensing Laboratory of Anhui ProvinceInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei230601China
| | - Yanjing Ma
- Information Materials and Intelligent Sensing Laboratory of Anhui ProvinceInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei230601China
| | - Jingwen Xu
- College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China
| | - Yuna Shi
- College of Biotechnology and BioengineeringZhejiang University of TechnologyHangzhou310014China
| | - Junbin Liao
- College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China
| | - Zhenlu Shen
- College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China
| | - Jiangnan Shen
- College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China
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12
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Cournoyer A, Bazinet L. Electrodialysis Processes an Answer to Industrial Sustainability: Toward the Concept of Eco-Circular Economy?-A Review. MEMBRANES 2023; 13:205. [PMID: 36837708 PMCID: PMC9962313 DOI: 10.3390/membranes13020205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 01/25/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Wastewater and by-product treatments are substantial issues with consequences for our society, both in terms of environmental impacts and economic losses. With an overall global objective of sustainable development, it is essential to offer eco-efficient and circular solutions. Indeed, one of the major solutions to limit the use of new raw materials and the production of wastes is the transition toward a circular economy. Industries must find ways to close their production loops. Electrodialysis (ED) processes such as conventional ED, selective ED, ED with bipolar membranes, and ED with filtration membranes are processes that have demonstrated, in the past decades and recently, their potential and eco-efficiency. This review presents the most recent valorization opportunities among different industrial sectors (water, food, mining, chemistry, etc.) to manage waste or by-product resources through electrodialysis processes and to improve global industrial sustainability by moving toward circular processes. The limitations of existing studies are raised, especially concerning eco-efficiency. Indeed, electrodialysis processes can be optimized to decrease energy consumption and costs, and to increase efficiency; however, eco-efficiency scores should be determined to compare electrodialysis with conventional processes and support their advantages. The review shows the high potential of the different types of electrodialysis processes to treat wastewaters and liquid by-products in order to add value or to generate new raw materials. It also highlights the strong interest in using eco-efficient processes within a circular economy. The ideal scenario for sustainable development would be to make a transition toward an eco-circular economy.
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Affiliation(s)
| | - Laurent Bazinet
- Department of Food Sciences, Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and ElectroMembrane Processes), Institute of Nutrition and Functional Foods (INAF), Dairy Research Center (STELA), Université Laval, Quebec, QC G1V 0A6, Canada
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13
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Ionic liquid-based pore-filling anion-exchange membranes enable fast large-sized metallic anion migration in electrodialysis. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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14
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Xie F, Lu F, Liu C, Tian Y, Gao Y, Zheng L, Gao X. Poly(ionic liquid) Membranes Preserving Liquid Crystalline Microstructures for Lithium-Ion Enrichment. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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15
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Zhang X, Li F, Liu M, Zhu C, Zhao X. Positively charged modification of commercial nanofiltration membrane to enhance the separation of mono−/divalent cation. J Appl Polym Sci 2022. [DOI: 10.1002/app.53204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xue Zhang
- Lab of Environmental Science & Technology, INET Tsinghua University Beijing China
| | - Fuzhi Li
- Lab of Environmental Science & Technology, INET Tsinghua University Beijing China
| | - Mingqiao Liu
- Lab of Environmental Science & Technology, INET Tsinghua University Beijing China
- Beijing Engineering Research Center of Environmental Material for Water Purification, College of Chemical Engineering Beijing University of Chemical Technology Beijing China
| | - Chenyu Zhu
- Lab of Environmental Science & Technology, INET Tsinghua University Beijing China
| | - Xuan Zhao
- Lab of Environmental Science & Technology, INET Tsinghua University Beijing China
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16
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Mussel-inspired polyphenol/polyethyleneimine assembled membranes with highly positive charged surface for unprecedented high cation perm-selectivity. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120703] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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17
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Wang W, Zhang Y, Tan M, Xue C, Zhou W, Bao H, Hon Lau C, Yang X, Ma J, Shao L. Recent advances in monovalent ion selective membranes towards environmental remediation and energy harvesting. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121520] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Tao L, Wang X, Wu F, Wang B, Gao C, Gao X. Highly efficient Li+/Mg2+ separation of monovalent cation permselective membrane enhanced by 2D metal organic framework nanosheets. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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19
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Fabrication of High-Performance Nanofiltration Membrane Using Polydopamine and Carbon Nitride as the Interlayer. SEPARATIONS 2022. [DOI: 10.3390/separations9070180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022] Open
Abstract
In order to recover lithium from brine with a high Mg2+/Li+ ratio, a positively charged nanofiltration (NF) membrane was prepared by depositing polydopamine (PDA)-coated graphitic carbon nitride (g-C3N4) as the interlayer (PDA-g-C3N4) and the interfacial polymerization (IP) of polyethyleneimine (PEI) and trimesoyl chloride (TMC) was carried out. Under optimal conditions, the water contact angle of the composite membrane is only 55.5° and the isoelectric point (IEP) is 6.01. The final positively charged NF membrane (M5) exhibits high permeance (10.19 L·m−2·h−1·bar−1) and high rejection of Mg2+ (98.20%) but low rejection of Li+ (13.33%). The separation factor (SF) is up to 48.08, and the Mg2+/Li+ ratio of the permeate is 0.036 in the simulated brine. In conclusion, the M5 membrane shows a good separation performance for salt lake brine (SF = 12.79 and Mg2+/Li+ ratio of the permeate = 1.43) and good fouling resistance. Therefore, the positively charged M5 membrane with PDA-g-C3N4 as the interlayer has the potential to be used for the recovery of lithium from brine.
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20
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Zhao Z, Li X, Zhang H, Sheng F, Xu T, Zhu Y, Zhang H, Ge L, Xu T. Polyamide-Based Electronanofiltration Membranes for Efficient Anion Separation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhang Zhao
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Xingya Li
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Hao Zhang
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Fangmeng Sheng
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Tingting Xu
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Yanran Zhu
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Huacheng Zhang
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Liang Ge
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
- Applied Engineering Technology Research Center for Functional Membranes, Institute of Advanced Technology, University of Science and Technology of China, Hefei 230088, People’s Republic of China
| | - Tongwen Xu
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China
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21
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Optimizing functional layer of cation exchange membrane by three-dimensional cross-linking quaternization for enhancing monovalent selectivity. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Sheng F, Li X, Li Y, Afsar NU, Zhao Z, Ge L, Xu T. Cationic covalent organic framework membranes for efficient dye/salt separation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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23
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Ultrahigh-efficient separation of Mg2+/Li+ using an in-situ reconstructed positively charged nanofiltration membrane under an electric field. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119880] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Afsar NU, Li X, Zhu Y, Ge Z, Zhou Y, Zhao Z, Hussain A, Ge L, Fu R, Liu Z, Xu T. In‐situ interfacial polymerization endows surface enrichment of
COOH
groups on anion exchange membranes for efficient Cl
−
/
SO
4
2
−
separation. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210735] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Noor Ul Afsar
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Xingya Li
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Yanran Zhu
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Zijuan Ge
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Yue Zhou
- Applied Engineering Technology Research Center for Functional Membranes, Institute of Advanced Technology University of Science and Technology of China Hefei People's Republic of China
| | - Zhang Zhao
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Arif Hussain
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
| | - Liang Ge
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
- Applied Engineering Technology Research Center for Functional Membranes, Institute of Advanced Technology University of Science and Technology of China Hefei People's Republic of China
| | - Rongqiang Fu
- Key Laboratory of Charged Polymeric Membrane Materials of Shandong Province Shandong Tianwei Membrane Technology Co., Ltd., The Hi‐tech Zone Weifang People's Republic of China
| | - Zhaoming Liu
- Key Laboratory of Charged Polymeric Membrane Materials of Shandong Province Shandong Tianwei Membrane Technology Co., Ltd., The Hi‐tech Zone Weifang People's Republic of China
| | - Tongwen Xu
- Anhui Provincial Engineering Laboratory of Functional Membrane Materials and Technology, Department of Applied Chemistry, School of Chemistry and Materials Science University of Science and Technology of China Hefei People's Republic of China
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25
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Duan X, Wang CW, Wang T, Xie X, Zhou X, Ye Y. Removal of Metal Ions in Phosphoric Acid by Electro-Electrodialysis with Cross-Linked Anion-Exchange Membranes. ACS OMEGA 2021; 6:32417-32430. [PMID: 34901593 PMCID: PMC8655774 DOI: 10.1021/acsomega.1c03720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/17/2021] [Indexed: 06/14/2023]
Abstract
There are numerous metallic impurities in wet phosphoric acid, which causes striking negative effects on industrial phosphoric acid production. In this study, the purification behavior of metallic impurities (Fe, Mg, Ca) from a wet phosphoric acid solution employing the electro-electrodialysis (EED) technology was investigated. The cross-linked polysulfone anion-exchange membranes (AEMs) for EED were prepared using N,N,N',N'-tetramethyl-1,6-hexanediamine (TMHDA) to achieve simultaneous cross-linking and quaternization without any cross-linkers or catalysts. The performance of the resulting membranes can be determined using quaternization reagents. When the molar ratio of trimethylamine/TMHDA/chloromethylated polysulfone is 3:1:1, the cross-linked membrane CQAPSU-3-1 exhibits lower water swelling and membrane area resistance than the non-cross-linked membrane. The low membrane area resistance of CQAPSU-3-1 with long alkyl chains is obtained due to the hydrophilic-hydrophobic microphase separation structure formed by TMHDA. EED experiments with different initial phosphoric acid concentrations of 0.52 and 1.07 M were conducted to evaluate the phosphoric acid purification of different AEMs. The results show that the EED experiments were more suitable for the purification of wet phosphoric acid solution at low concentrations. It was found that the phosphoric acid concentration in the anode compartment could be increased from 0.52 to 1.04 M. Through optimization, with an initial acid concentration of 0.52 M, CQAPSU-3-1 exhibits an enhanced metallic impurity removal ratio of higher than 72.0%, the current efficiency of more than 90%, and energy consumption of 0.48 kWh/kg. Therefore, CQAPSU-3-1 exhibits much higher purification efficiency than other membranes at a low initial phosphoric acid concentration, suggesting its potential in phosphoric acid purification application.
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Affiliation(s)
- Xiaoling Duan
- Hubei
Key Laboratory of Purification and Application of Plant Anti-Cancer
Active Ingredients, School of Chemistry and Life Sciences, Hubei University of Education, Wuhan 430205, China
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Cun-Wen Wang
- Key
Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430073, China
| | - Tielin Wang
- Key
Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430073, China
| | - Xiaolin Xie
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xingping Zhou
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yunsheng Ye
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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26
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Pan J, Tao Y, Zhao L, Yu X, Zhao X, Wu T, Liu L. Green preparation of quaternized vinylimidazole-based anion exchange membrane by photopolymerization. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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27
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28
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Pan J, Liu L, Tao Y, Zhao L, Yu X, Wu B, Zhao X, Liu L. Green Fabrication of Tertrabutylammonium Styrene Sulfonate Cation-Exchange Membranes via a Solvent-Free Photopolymerization Strategy. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiefeng Pan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Lingling Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yanyao Tao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Lei Zhao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaohong Yu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Bin Wu
- Anhui Province Key Laboratory of Environment-friendly Polymer Materials, Anhui University, Hefei 230601, P. R. China
| | - Xueting Zhao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Lifen Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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29
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Wang L, Lin Y, Tang Y, Ren D, Wang X. Fabrication of oppositely charged thin-film composite polyamide membranes with tunable nanofiltration performance by using a piperazine derivative. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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30
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Zhang Z, Luo Y, Peng H, Chen Y, Liao RZ, Zhao Q. Deep spatial representation learning of polyamide nanofiltration membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Composite anti-scaling membrane made of interpenetrating networks of nanofibers for selective separation of lithium. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118668] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Li S, Wang D, Xiao H, Zhang H, Cao S, Chen L, Ni Y, Huang L. Ultra-low pressure cellulose-based nanofiltration membrane fabricated on layer-by-layer assembly for efficient sodium chloride removal. Carbohydr Polym 2020; 255:117352. [PMID: 33436192 DOI: 10.1016/j.carbpol.2020.117352] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/21/2020] [Accepted: 10/29/2020] [Indexed: 10/23/2022]
Abstract
Cellulose is a renewable, biodegradable, biocompatible, and sustainable material. A bamboo cellulose-based nanofiltration membrane (LBL-NF-CS/BCM) was prepared with a combination of layer-by-layer assembly and spraying methods. The chemical structure, morphology, and surface charge of the resultant LBL-NF-CS/BCM composite membranes were characterized based on Thermo Gravimetric Analysis (TGA), X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and X-ray Photoelectron Spectroscopy Scanning (XPS). The nanofiltration performance of the LBL-NF-CS/BCM composite membranes was evaluated using 500 ppm NaCl solutions under 0.3 MPa pressure. It was found that the LBL-NF-CS/BCM composite membranes had a rejection rate of about 36.11 % against a 500 ppm NaCl solution under the conditions tested, and membrane flux of about 12.08 L/(m2 h) was reached. The combined layer-by-layer assembly and spraying provides a scalable and convenient process concept for nanofiltration membrane fabrication.
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Affiliation(s)
- Shi Li
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dong Wang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - He Xiao
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hui Zhang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Shilin Cao
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Lihui Chen
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yonghao Ni
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Department of Chemical Engineering and Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3, Canada.
| | - Liulian Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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33
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Xiao X, Shehzad MA, Yasmin A, Ge Z, Liang X, Sheng F, Ji W, Ge X, Wu L, Xu T. Anion permselective membranes with chemically-bound carboxylic polymer layer for fast anion separation. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118553] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Affiliation(s)
- Chao Tang
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana USA
| | - Merlin L. Bruening
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana USA
- Department of Chemistry and Biochemistry University of Notre Dame Notre Dame Indiana USA
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Zhang H, He Q, Luo J, Wan Y, Darling SB. Sharpening Nanofiltration: Strategies for Enhanced Membrane Selectivity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:39948-39966. [PMID: 32805813 DOI: 10.1021/acsami.0c11136] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Nanofiltration plays an increasingly large role in many industrial applications, such as water treatment (e.g., desalination, water softening, and fluoride removal) and resource recovery (e.g., alkaline earth metals). Energy consumption and benefits of nanofiltration processes are directly determined by the selectivity of the nanofiltration membranes, which is largely governed by pore-size distribution and Donnan effects. During operation, the separation performance of unmodified nanofiltration membranes will also be impacted (deleteriously) upon unavoidable membrane fouling. Many efforts, therefore, have been directed toward enhancing the selectivity of nanofiltration membranes, which can be classified into membrane fabrication method improvement and process intensification. This review summarizes recent developments in the field and provides guidance for potential future approaches to improve the selectivity of nanofiltration membranes.
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Affiliation(s)
- Huiru Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
- Chemical Sciences and Engineering Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Qiming He
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Seth B Darling
- Chemical Sciences and Engineering Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
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Zhao C, Zhang T, Hu G, Ma J, Song R, Li J. Efficient removal of perfluorooctane sulphonate by nanofiltration: Insights into the effect and mechanism of coexisting inorganic ions and humic acid. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ye W, Liu R, Chen X, Chen Q, Lin J, Lin X, Van der Bruggen B, Zhao S. Loose nanofiltration-based electrodialysis for highly efficient textile wastewater treatment. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118182] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Peng H, Zhang WH, Hung WS, Wang N, Sun J, Lee KR, An QF, Liu CM, Zhao Q. Phosphonium Modification Leads to Ultrapermeable Antibacterial Polyamide Composite Membranes with Unreduced Thickness. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001383. [PMID: 32350974 DOI: 10.1002/adma.202001383] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/20/2020] [Accepted: 04/03/2020] [Indexed: 05/27/2023]
Abstract
Water transport rate in network membranes is inversely correlated to thickness, thus superior permeance is achievable with ultrathin membranes prepared by complicated methods circumventing nanofilm weakness and defects. Conferring ultrahigh permeance to easily prepared thicker membranes remains challenging. Here, a tetrakis(hydroxymethyl) phosphonium chloride (THPC) monomer is discovered that enables straightforward modification of polyamide composite membranes. Water permeance of the modified membrane is ≈6 times improved, give rising to permeability (permeance × thickness) one magnitude higher than state-of-the-art polymer nanofiltration membranes. Meanwhile, the membrane exhibits good rejection (RNa2SO4 = 98%) and antibacterial properties under crossflow conditions. THPC modification not only improves membrane hydrophilicity, but also creates additional angstrom-scale channels in polyamide membranes for unimpeded transport of water. This unique mechanism provides a paradigm shift in facile preparation of ultrapermeable membranes with unreduced thickness for clean water and desalination.
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Affiliation(s)
- Huawen Peng
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wen-Hai Zhang
- Beijing Key Laboratory for Green Catalysis and Separation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Wei-Song Hung
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Naixin Wang
- Beijing Key Laboratory for Green Catalysis and Separation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Jian Sun
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Kueir-Rarn Lee
- R&D Center for Membrane Technology, Department of Chemical Engineering, Chung Yuan University, Chung-Li, Taoyuan City, 32023, Taiwan
| | - Quan-Fu An
- Beijing Key Laboratory for Green Catalysis and Separation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Cheng-Mei Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qiang Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
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Sheng F, Afsar NU, Zhu Y, Ge L, Xu T. PVA-Based Mixed Matrix Membranes Comprising ZSM-5 for Cations Separation. MEMBRANES 2020; 10:membranes10060114. [PMID: 32486311 PMCID: PMC7344570 DOI: 10.3390/membranes10060114] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 01/17/2023]
Abstract
The traditional ion-exchange membranes face the trade-off effect between the ion flux and perm-selectivity, which limits their application for selective ion separation. Herein, we amalgamated various amounts of the ZSM-5 with the polyvinyl alcohol as ions transport pathways to improve the permeability of monovalent cations and exclusively reject the divalent cations. The highest contents of ZSM-5 in the mixed matrix membranes (MMMs) can be extended up to 60 wt% while the MMMs with optimized content (50 wt%) achieved high perm-selectivity of 34.4 and 3.7 for H+/Zn2+ and Li+/Mg2+ systems, respectively. The obtained results are high in comparison with the commercial CSO membrane. The presence of cationic exchange sites in the ZSM-5 initiated the fast transport of proton, while the microporous crystalline morphology restricted the active transport of larger hydrated cations from the solutions. Moreover, the participating sites and porosity of ZSM-5 granted continuous channels for ions electromigration in order to give high limiting current density to the MMMs. The SEM analysis further exhibited that using ZSM-5 as conventional fillers, gave a uniform and homogenous formation to the membranes. However, the optimized amount of fillers and the assortment of a proper dispersion phase are two critical aspects and must be considered to avoid defects and agglomeration of these enhancers during the formation of membranes.
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Affiliation(s)
- Fangmeng Sheng
- CAS Key Laboratory of Soft Matter Chemistry, iCHEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China; (F.S.); (N.U.A.); (Y.Z.)
| | - Noor Ul Afsar
- CAS Key Laboratory of Soft Matter Chemistry, iCHEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China; (F.S.); (N.U.A.); (Y.Z.)
| | - Yanran Zhu
- CAS Key Laboratory of Soft Matter Chemistry, iCHEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China; (F.S.); (N.U.A.); (Y.Z.)
| | - Liang Ge
- CAS Key Laboratory of Soft Matter Chemistry, iCHEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China; (F.S.); (N.U.A.); (Y.Z.)
- Applied Engineering Technology Research Center for Functional Membranes, Institute of Advanced Technology, University of Science and Technology of China, Hefei 230088, China
- Correspondence: (T.X.); (L.G.); Tel.: +86-551-63601581 (T.X.); Fax: +86-551-63602171 (T.X.)
| | - Tongwen Xu
- CAS Key Laboratory of Soft Matter Chemistry, iCHEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Applied Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China; (F.S.); (N.U.A.); (Y.Z.)
- Correspondence: (T.X.); (L.G.); Tel.: +86-551-63601581 (T.X.); Fax: +86-551-63602171 (T.X.)
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Zhou Y, Hu C, Liu H, Qu J. Potassium-Ion Recovery with a Polypyrrole Membrane Electrode in Novel Redox Transistor Electrodialysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:4592-4600. [PMID: 32129612 DOI: 10.1021/acs.est.9b06665] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Conductive polymers are potential selective ion-exchange membrane materials. In this study, a novel redox transistor electrodialyzer consisting of two chambers separated by a polypyrrole (PPy) membrane electrode was designed for potassium ion (K+) recovery from water. The PPy membrane electrode was fabricated by depositing PPy on a stainless-steel wire mesh through the electrochemical method. Based on ion-exchange results, the PPy membrane exhibited electrodialysis selectivity for K+ in the presence of Na+, with a K+/Na+ separation factor of 2.10. Adding modified active carbon to PPy provided a larger electroactive area and better conductivity, resulting in higher ion-exchange capacity (1.04 mmol/L) compared with the original PPy membrane. Even for seawater containing a very low concentration of K+ (16.18 mmol/L), the PPy membrane still demonstrated K+ selectivity (separation factor of 2.18). Energy consumption in the electrodialyzer was 3.80 kW h/kg K, which was 37% lower than that in traditional electrodialysis. Furthermore, the PPy membrane exhibited antiscaling/fouling ability with the help of a pulse voltage. These findings highlight a novel redox transistor electrodialysis process with great potential application in K+ recovery from wastewater with relatively low energy consumption.
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Affiliation(s)
- Yi Zhou
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengzhi Hu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huijuan Liu
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jiuhui Qu
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Zhao Y, Mai Z, Shen P, Ortega E, Shen J, Gao C, Van der Bruggen B. Nanofiber Based Organic Solvent Anion Exchange Membranes for Selective Separation of Monovalent anions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7539-7547. [PMID: 31978301 DOI: 10.1021/acsami.9b19962] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Present anion exchange membranes are generally constructed by simple and positively charged polymers with insufficient organic solvent resistance, and exhibit a low selectivity in the separation of anions. Here, dissolving poly(paraphenylene terephthalamide) nanofibers into small nanofibers and performing a reaction with quaternary ammonium groups in the one-dimensional small nanofibers, high-performance anion exchange membranes were successfully fabricated. By increasing the 2,3-epoxypropyl trimethylammonium chloride content, the synthesized amide nanofiber quaternary ammonium membranes (ANF#QA) exhibited a higher anion exchange capacity (as high as 1.75 mmol·g-1) and achieved a high electrochemical performance. In electrodialysis, the ANF#QA-10 membrane showed an exceptional Cl- selectivity in dilute and concentrated cells. Due to the dense structure and presence of carboxyl groups on the nanofibers, the ANF#QA membranes exhibited a selective separation of monovalent anions. After 48 h of immersion in aqueous acetone solutions, the final ANF#QA-10 membrane exhibited high desalination and concentration efficiency as the initial membrane. This work highlights the promising use of positive charges on small nanofibers, and proposes the design of a special anion exchange membrane, which can be used for electrodialysis in organic solvent solutions, and to selectively separate monovalent anions.
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Affiliation(s)
- Yan Zhao
- Department of Chemical Engineering , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
| | - Zhaohuan Mai
- Department of Chemical Engineering , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
| | - Pengxin Shen
- Center for Membrane Separation and Water Science & Technology, Ocean College , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Emily Ortega
- College of Fisheries and Ocean Sciences , University of Alaska-Fairbanks , Fairbanks , Alaska 99775 , United States
| | - Jiangnan Shen
- Center for Membrane Separation and Water Science & Technology, Ocean College , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Congjie Gao
- Center for Membrane Separation and Water Science & Technology, Ocean College , Zhejiang University of Technology , Hangzhou 310014 , P. R. China
| | - Bart Van der Bruggen
- Department of Chemical Engineering , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium
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